Getting your RN in most places is a 5 year thing. 2 years of general ed... a "lag year" (because nursing schools are so competitive to get into, nearly no one without ALL of their prereqs and volunteer hours and i's dotted/ t's crossed gets in... so you have to wait until you have the whole shebang, and THEN apply, which creates the lag year). Oddly (or not), getting your BSRN (big jump in pay) takes the same amount of time + about 1 quarter. Versus getting your RN and then going back to school for your BSRN, which takes 1-2 years.
Personally I started school when my son was 2 months old. I went part time (1 class the first quarter, 2 classes the next couple quarters, up to 3 -too hard- backed off and stayed at 2 classes). I figured: worst case scenario I would get my associates out of the deal... and if I needed to wait until kiddo was in school to go full on for nursing school & practicums... then I'd know it, rather than guess it.
Being in school was a great compromise for me. I got to only be gone 10 hours a week (on average) and studied while kiddo was sleeping. I earned as much with my financial aid as I would have working full time and paying for childcare. So the whole thing was win win.
I myself would never have been able to work AND go to school AND be the primary caregiver. The whole sleep-is-necessary thing. But I know others who actually split parenting who are able to do so.